starting on some improvements when building methods on partially constructed types
Don't assume that MethodInfo.ParameterType... works.  MethodBuilders make that weird.
handle MethodBuilders better in instruction returns, don't manipulate ParameterTypes; buggy, old vestige of older Sigil versions
treat characters as aliases for ushorts
fix for ValueType field loading
another ValueType field fix
actually commit the proper fix
fix throw requiring a pointless return
Correct some of ReThrow's semantics
3.2.0